Patrick Martin ESA Planetary Scientist in the Solar System Science Operations Division at ESAC I completed my PhD in December 1996 at the Observatoire Midi-Pyrénées, Paul Sabatier University, Toulouse, France, in the domain of Astrophysics, Geophysics, and Planetary Sciences. The thesis title was "Optical and mineralogical heterogeneities of planetary surfaces through spectral study: The Tharsis region (Mars) and the Humorum impact basin (Moon)". Then I took from March 1997 to August 1998 a first position as postdoctoral fellow at the Planetary Geosciences Division of the Hawaii Institute of Geophysics and Planetology, University of Hawaii, Honolulu, HI, USA. The research was focused on the investigation of the surface composition of the icy Galilean satellites, using measurements conducted by the Near-Infrared Mapping Spectrometer (NIMS) onboard the Galileo spacecraft. This was followed in September 1998 by an academic position as Research Associate at the Center for Radiophysics and Space Research, Department of Astronomy, Cornell University, NY, USA. The position involved working primarily with the planning, reduction, analysis, and publication of data obtained by the NIS instrument onboard the Near Earth Asteroid Rendez-vous spacecraft. Other projects associated with the position included scientific research using recalibrated multispectral data of the Martian surface obtained in situ (Mars Pathfinder) and from Earth orbit (HST). Since April 2000, I work at ESA as Planetary Scientist on the Mars Express mission. I was based at ESTEC until August 2006. The position involves working primarily with the Project Scientist and Mission Manager Team, the Ground Segment Team, and the Principal Investigators Teams. Since my move to ESAC in September 2006, I am involved in implementing the SCI-SO Division activities here in Spain, and will look into conducting research investigations linked to the future European exploration of the Solar System, focusing on Mars and the selection of landing sites.